Shoe machine air blast mechanism and air blast safety device
US4283806A · kind A · utility
1Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 1979 |
| Grant date | Aug 18, 1981 |
| Priority date | — |
| Expiry date | Jun 12, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43D25/185
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A device for cement applying mechanisms in shoe lasting machines, wherein a safety valve is caused to prevent air from entering an air feed line in the cement feed when there is no shoe in the shoe machine and the shoe machine has been actuated, thereby preventing the machine operator from being injured by hot cement, and where nozzles may be effectively used with an air blast to controllably project hot cement onto portions of insoles some of which may not be immediately thereadjacent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.